<!doctype html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <title>All Attributes Test Page</title>
  </head>
  <body>
    <div
      id="main"
      data-custom="custom"
      aria-label="main content"
      style="color: red"
    >
      <button id="btn1" class="btn" type="button" disabled>Button 1</button>
      <span data-something="yes">Some span</span>
    </div>
  </body>
</html>
